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2016-04-19xdiff: implement empty line chunk heuristicLibravatar Stefan Beller2-0/+11
In order to produce the smallest possible diff and combine several diff hunks together, we implement a heuristic from GNU Diff which moves diff hunks forward as far as possible when we find common context above and below a diff hunk. This sometimes produces less readable diffs when writing C, Shell, or other programming languages, ie: ... /* + * + * + */ + +/* ... instead of the more readable equivalent of ... +/* + * + * + */ + /* ... Implement the following heuristic to (optionally) produce the desired output. If there are diff chunks which can be shifted around, shift each hunk such that the last common empty line is below the chunk with the rest of the context above. This heuristic appears to resolve the above example and several other common issues without producing significantly weird results. However, as with any heuristic it is not really known whether this will always be more optimal. Thus, it can be disabled via diff.compactionHeuristic. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2016-03-17Git 2.4.11Libravatar Junio C Hamano2-1/+13
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28Git 2.4.10Libravatar Junio C Hamano2-1/+20
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-28Sync with 2.3.10Libravatar Junio C Hamano2-1/+47
2015-09-28Git 2.3.10Libravatar Junio C Hamano2-1/+20
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-25http: limit redirection to protocol-whitelistLibravatar Blake Burkhart1-5/+0
Previously, libcurl would follow redirection to any protocol it was compiled for support with. This is desirable to allow redirection from HTTP to HTTPS. However, it would even successfully allow redirection from HTTP to SFTP, a protocol that git does not otherwise support at all. Furthermore git's new protocol-whitelisting could be bypassed by following a redirect within the remote helper, as it was only enforced at transport selection time. This patch limits redirects within libcurl to HTTP, HTTPS, FTP and FTPS. If there is a protocol-whitelist present, this list is limited to those also allowed by the whitelist. As redirection happens from within libcurl, it is impossible for an HTTP redirect to a protocol implemented within another remote helper. When the curl version git was compiled with is too old to support restrictions on protocol redirection, we warn the user if GIT_ALLOW_PROTOCOL restrictions were requested. This is a little inaccurate, as even without that variable in the environment, we would still restrict SFTP, etc, and we do not warn in that case. But anything else means we would literally warn every time git accesses an http remote. This commit includes a test, but it is not as robust as we would hope. It redirects an http request to ftp, and checks that curl complained about the protocol, which means that we are relying on curl's specific error message to know what happened. Ideally we would redirect to a working ftp server and confirm that we can clone without protocol restrictions, and not with them. But we do not have a portable way of providing an ftp server, nor any other protocol that curl supports (https is the closest, but we would have to deal with certificates). [jk: added test and version warning] Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-23transport: add a protocol-whitelist environment variableLibravatar Jeff King1-0/+32
If we are cloning an untrusted remote repository into a sandbox, we may also want to fetch remote submodules in order to get the complete view as intended by the other side. However, that opens us up to attacks where a malicious user gets us to clone something they would not otherwise have access to (this is not necessarily a problem by itself, but we may then act on the cloned contents in a way that exposes them to the attacker). Ideally such a setup would sandbox git entirely away from high-value items, but this is not always practical or easy to set up (e.g., OS network controls may block multiple protocols, and we would want to enable some but not others). We can help this case by providing a way to restrict particular protocols. We use a whitelist in the environment. This is more annoying to set up than a blacklist, but defaults to safety if the set of protocols git supports grows). If no whitelist is specified, we continue to default to allowing all protocols (this is an "unsafe" default, but since the minority of users will want this sandboxing effect, it is the only sensible one). A note on the tests: ideally these would all be in a single test file, but the git-daemon and httpd test infrastructure is an all-or-nothing proposition rather than a test-by-test prerequisite. By putting them all together, we would be unable to test the file-local code on machines without apache. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-04Git 2.4.9Libravatar Junio C Hamano2-1/+11
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-04Sync with 2.3.9Libravatar Junio C Hamano3-2/+22
2015-09-04Git 2.3.9Libravatar Junio C Hamano2-1/+11
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-09-04Sync with 2.2.3Libravatar Junio C Hamano2-1/+11
2015-09-04Git 2.2.3Libravatar Junio C Hamano2-1/+11
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-08-03Git 2.4.8Libravatar Junio C Hamano2-1/+23
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-27Git 2.4.7Libravatar Junio C Hamano2-1/+55
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-27Merge branch 'jk/pretty-encoding-doc' into maintLibravatar Junio C Hamano1-1/+4
Doc update. * jk/pretty-encoding-doc: docs: clarify that --encoding can produce invalid sequences
2015-07-27Merge branch 'tb/checkout-doc' into maintLibravatar Junio C Hamano1-1/+5
Doc update. * tb/checkout-doc: git-checkout.txt: document "git checkout <pathspec>" better
2015-07-27Merge branch 'ls/hint-rev-list-count' into maintLibravatar Junio C Hamano1-0/+1
* ls/hint-rev-list-count: rev-list: add --count to usage guide
2015-07-27Merge branch 'mm/branch-doc-updates' into maintLibravatar Junio C Hamano1-2/+6
* mm/branch-doc-updates: Documentation/branch: document -M and -D in terms of --force Documentation/branch: document -d --force and -m --force
2015-07-15Git 2.4.6Libravatar Junio C Hamano2-1/+25
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-15Merge branch 'mm/describe-doc' into maintLibravatar Junio C Hamano1-1/+1
Docfix. * mm/describe-doc: Documentation/describe: improve one-line summary
2015-07-15Merge branch 'fk/doc-format-patch-vn' into maintLibravatar Junio C Hamano1-1/+1
Docfix. * fk/doc-format-patch-vn: doc: format-patch: fix typo
2015-07-06Documentation/branch: document -M and -D in terms of --forceLibravatar Matthieu Moy1-2/+2
Now that we have proper documentation for --force's interaction with -d and -m, we can avoid duplication and consider -M and -D as convenience aliases for -m --force and -d --force. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-06Documentation/branch: document -d --force and -m --forceLibravatar Matthieu Moy1-0/+4
The --force option was modified in 356e91f (branch: allow -f with -m and -d, 2014-12-08), but the documentation was not updated. Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-07-01rev-list: add --count to usage guideLibravatar Lawrence Siebert1-0/+1
--count should be mentioned in the usage guide, this updates code and documentation. Signed-off-by: Lawrence Siebert <lawrencesiebert@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-25Git 2.4.5Libravatar Junio C Hamano2-1/+30
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-25Merge branch 'sg/merge-summary-config' into maintLibravatar Junio C Hamano3-16/+12
Doc updates. * sg/merge-summary-config: Documentation: include 'merge.branchdesc' for merge and config as well
2015-06-25Merge branch 'sb/pack-protocol-mention-smart-http' into maintLibravatar Junio C Hamano1-3/+3
Doc updates. * sb/pack-protocol-mention-smart-http: Documentation/technical/pack-protocol: mention http as possible protocol
2015-06-25Merge branch 'jk/color-diff-plain-is-context' into maintLibravatar Junio C Hamano1-1/+2
"color.diff.plain" was a misnomer; give it 'color.diff.context' as a more logical synonym. * jk/color-diff-plain-is-context: diff.h: rename DIFF_PLAIN color slot to DIFF_CONTEXT diff: accept color.diff.context as a synonym for "plain"
2015-06-17docs: clarify that --encoding can produce invalid sequencesLibravatar Jeff King1-1/+4
In the common case that the commit encoding matches the output encoding, we do not touch the buffer at all, which makes things much more efficient. But it might be unclear to a consumer that we will pass through bogus sequences. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-17git-checkout.txt: document "git checkout <pathspec>" betterLibravatar Torsten Bögershausen1-1/+5
git checkout <pathspec> can be used to reset changes in the working tree. Signed-off-by: Torsten Bögershausen <tboegi@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-16Git 2.4.4Libravatar Junio C Hamano2-1/+37
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-16Merge branch 'sb/submodule-doc-intro' into maintLibravatar Junio C Hamano1-28/+22
* sb/submodule-doc-intro: submodule doc: reorder introductory paragraphs
2015-06-16Merge branch 'sb/glossary-submodule' into maintLibravatar Junio C Hamano1-0/+16
* sb/glossary-submodule: glossary: add "remote", "submodule", "superproject"
2015-06-16Merge branch 'mc/commit-doc-grammofix' into maintLibravatar Junio C Hamano1-1/+1
Doc grammar fix. * mc/commit-doc-grammofix: Documentation/git-commit: grammofix
2015-06-16Merge branch 'jk/http-backend-deadlock' into maintLibravatar Junio C Hamano1-0/+9
Communication between the HTTP server and http_backend process can lead to a dead-lock when relaying a large ref negotiation request. Diagnose the situation better, and mitigate it by reading such a request first into core (to a reasonable limit). * jk/http-backend-deadlock: http-backend: spool ref negotiation requests to buffer t5551: factor out tag creation http-backend: fix die recursion with custom handler
2015-06-16Merge branch 'mm/log-format-raw-doc' into maintLibravatar Junio C Hamano2-2/+14
Clarify that "log --raw" and "log --format=raw" are unrelated concepts. * mm/log-format-raw-doc: Documentation/log: clarify sha1 non-abbreviation in log --raw Documentation/log: clarify what --raw means
2015-06-16Documentation/describe: improve one-line summaryLibravatar Matthieu Moy1-1/+1
git describe does not show 'the most recent tag that is reachable from a commit', but a descriptive name based on this tag. Fix the description to reflect that. Suggested-by: Albert Netymk <albertnetymk@gmail.com> Signed-off-by: Matthieu Moy <Matthieu.Moy@imag.fr> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-10doc: format-patch: fix typoLibravatar Frans Klaver1-1/+1
reroll count documentation states that v<n> will be pretended to the filename. Judging by the examples that should have been 'prepended'. Signed-off-by: Frans Klaver <fransklaver@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-05Git 2.4.3Libravatar Junio C Hamano2-1/+78
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-06-05Merge branch 'ps/doc-packfile-vs-pack-file' into maintLibravatar Junio C Hamano3-9/+9
Doc consistency updates. * ps/doc-packfile-vs-pack-file: doc: fix inconsistent spelling of "packfile" pack-protocol.txt: fix insconsistent spelling of "packfile" git-unpack-objects.txt: fix inconsistent spelling of "packfile" git-verify-pack.txt: fix inconsistent spelling of "packfile"
2015-06-05Merge branch 'fg/document-commit-message-stripping' into maintLibravatar Junio C Hamano1-4/+7
* fg/document-commit-message-stripping: Documentation: clarify how "git commit" cleans up the edited log message
2015-06-05Merge branch 'pt/pull-ff-vs-merge-ff' into maintLibravatar Junio C Hamano1-1/+1
The pull.ff configuration was supposed to override the merge.ff configuration, but it didn't. * pt/pull-ff-vs-merge-ff: pull: parse pull.ff as a bool or string pull: make pull.ff=true override merge.ff
2015-06-05Merge branch 'ja/tutorial-asciidoctor-fix' into maintLibravatar Junio C Hamano1-1/+1
A literal block in the tutorial had lines with unequal lengths to delimit it from the rest of the document, which choke GitHub's AsciiDoc renderer. * ja/tutorial-asciidoctor-fix: doc: fix unmatched code fences
2015-06-05Merge branch 'jk/stripspace-asciidoctor-fix' into maintLibravatar Junio C Hamano1-3/+3
A literal block in the tutorial had lines with unequal lengths to delimit it from the rest of the document, which choke GitHub's AsciiDoc renderer. * jk/stripspace-asciidoctor-fix: doc: fix unmatched code fences in git-stripspace
2015-06-05Merge branch 'jk/asciidoc-markup-fix' into maintLibravatar Junio C Hamano19-102/+107
Various documentation mark-up fixes to make the output more consistent in general and also make AsciiDoctor (an alternative formatter) happier. * jk/asciidoc-markup-fix: doc: convert AsciiDoc {?foo} to ifdef::foo[] doc: put example URLs and emails inside literal backticks doc: drop backslash quoting of some curly braces doc: convert \--option to --option doc/add: reformat `--edit` option doc: fix length of underlined section-title doc: fix hanging "+"-continuation doc: fix unquoted use of "{type}" doc: fix misrendering due to `single quote'
2015-06-05Merge branch 'pt/xdg-config-path' into maintLibravatar Junio C Hamano1-2/+33
Code clean-up for xdg configuration path support. * pt/xdg-config-path: path.c: remove home_config_paths() git-config: replace use of home_config_paths() git-commit: replace use of home_config_paths() credential-store.c: replace home_config_paths() with xdg_config_home() dir.c: replace home_config_paths() with xdg_config_home() attr.c: replace home_config_paths() with xdg_config_home() path.c: implement xdg_config_home() t0302: "unreadable" test needs POSIXPERM t0302: test credential-store support for XDG_CONFIG_HOME git-credential-store: support XDG_CONFIG_HOME git-credential-store: support multiple credential files
2015-06-02Documentation/technical/pack-protocol: mention http as possible protocolLibravatar Stefan Beller1-3/+3
Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29glossary: add "remote", "submodule", "superproject"Libravatar Stefan Beller1-0/+16
Noticed-by: Philip Oakley <philipoakley@iee.org> Helped-by: Junio C Hamano <gitster@pobox.com> Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-28submodule doc: reorder introductory paragraphsLibravatar Stefan Beller1-28/+22
It's better to start the man page with a description of what submodules actually are, instead of saying what they are not. Reorder the paragraphs such that - the first short paragraph introduces the submodule concept, - the second paragraph highlights the usage of the submodule command, - the third paragraph giving background information, and finally - the fourth paragraph discusing alternatives such as subtrees and remotes, which we don't want to be confused with. This ordering deepens the knowledge on submodules with each paragraph. First the basic questions like "How/what" will be answered, while the underlying concepts will be taught at a later time. Making sure it is not confused with subtrees and remotes is not really enhancing knowledge of submodules itself, but rather painting the big picture of git concepts, so you could also argue to have it as the second paragraph. Personally I think this may confuse readers, specially newcomers though. Additionally to reordering the paragraphs, they have been slightly reworded. Signed-off-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-28Documentation: include 'merge.branchdesc' for merge and config as wellLibravatar SZEDER Gábor3-16/+12
'merge.branchdesc' is only mentioned in the docs of 'git fmt-merge-msg'. The description of 'merge.log' is already duplicated between 'merge-config.txt' and 'git-fmt-merge-msg.txt'; instead of duplicating the description of another config variable, extract the descriptions of both of these variables from 'git-fmt-merge-msg.txt' into a separate file and include it there and in 'merge-config.txt'. Leave 'merge.summary' only in git-fmt-merge-msg.txt, as it is marked as deprecated. Signed-off-by: SZEDER Gábor <szeder@ira.uka.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>